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TROUBLESHOOTING 
 

DMS-EPC (models with an external pumping chamber)

FAULT

CHECK (POSSIBLE CAUSE)

REMEDY

Pump does not start 

and makes no noise.

A.  Check that there is power to pump.

B.  Check the protection fuses.

C. Check the float switch.

A.  Check that there is power  

to pump.

 

B.  If fuses are burnt-out, change 

them.

 

C.  Ensure that the float moves 

freely. Ensure that the float is 

operating correctly. (Contact 

the supplier).

Pump does not 

deliver.

A.  Inspect base of pump for rag and/or 

blockages.

 

B.  The impeller is worn or blocked.

 

C.  The check valve,  if installed on the 

delivery pipe may be compromised.

D.  The level of the liquid is too low. 

E.  The required head is higher than 

the pump is designed for.

A. Remove the blockage.

 

B.  No serviceable parts in  

the pump.

 

C.  Check that twhe valve is 

operating correctly and 

replace if it necessary.

 

D.  Adjust the length of the float 

switch cable.

 

E. Contact WPL (See footer)

Pump does not stop.

A.  The pump is not deactivated by 

the float switch.

A.  Ensure that the float moves 

freely. Check float operation 

(the contacts could be 

damaged - contact the 

supplier).

Flow is insufficient.

A. Check for blockages.

 

B.  Ensure that the impeller or the 

delivery pipe is not partly blocked 

or encrusted.

 

C.  Check three-phase motors for 

blockages or build-up.

A. Remove any blockage.

 

B. Remove any blockage.

 

C. Check rotation of the motor.

Thermal overload 

protection stops the 

pump.

A.  Check that the liquid to be 

pumped is not too dense as this 

could cause the motor to overheat.

 

B.  Check that the water temperature 

is not too high.

 

C.  The pump may be partly blocked 

by impurities.

 

D. The pump is mechanically blocked.

A.  Check operation of  

system i.e. de-sludge air  

to chamber process.

 

B. Investigate possible cause.

 

C. Carefully clean the pump.

D.  Check whether there  

is rubbing between the 

moving and fixed parts; check 

the wear of the bearings 

(contact the supplier).

Summary of Contents for WPL DIAMOND DMS2

Page 1: ...n and maintenance manual English Language Standard range Models DMS2 DMS3 DMS4 DMS5 Models DMC6 DMC7 DMC8 DMC9 Blower kiosk for DMS and DMC Additional parts depending on site condition Invert extensio...

Page 2: ...erations 15 Water softeners 15 Waste disposal units WDU 15 Grease from the kitchen 15 Condensing boilers 15 Surface run offs storm water 15 Swimming pool and hot tubs 15 DMS range 16 DMC range 17 Plan...

Page 3: ...MS and DMC range 33 External Pumping Chamber 35 DMS EPC Models 35 Installation Considerations 36 Electrical installation 37 Start Up 38 Maintenance 39 Troubleshooting 40 Hints And Tips 41 PROCESS GUAR...

Page 4: ...etc Protecting workers from risks to health Since micro organisms are an inherent part of sewage the hazard cannot be eliminated so a proper assessment of risk is required The Principal Contractor and...

Page 5: ...L recommends a British Water Accredited service engineer when dealing with harmful micro organisms De sludging frequency De sludging should be carried out by professionals holding the relevant permits...

Page 6: ...WPL Ltd 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 A B C D E F G A B C D E F G DRAWING N0 VERSION SITE ORIGINATORS DRAWING NO VERSION VERSION DRAWING N0 DRAWING TITLE PROJECT TITLE SCALE MASTER SIZE SI...

Page 7: ...t hardstanding to site that is suitable for heavy goods vehicles Inspect goods for damage before placing on the ground If damage is identified on delivery WPL must be notified within 24 hours Do not a...

Page 8: ...re alarm beacon and blower inside 10m of inch hose with hose clips x2 for the blower Standard tank models DMC6 DMC7 DMC8 and DMC come supplied with Tank as specified x1 Tank lid with M10 x 50mm stainl...

Page 9: ...ion heights of 700mm or 1000mm For a shallow extension where the factory fitted option is too great a non factory fitted neck invert extension height is 460mm can be supplied loose and cut to size on...

Page 10: ...Sample Chamber The sample chamber is not a requirement However WPL recommends installing one for ease of access to retrieve samples The sample chamber comes supplied with 250mm removable inspection ha...

Page 11: ...th Pumping chamber x1 Manhole cover x1 High level float switch x1 Submersible pump and integral float switch x1 Non return valve Isolation valve 32mm MPDE pipe outlet fitting Electrical junction box I...

Page 12: ...tank do not stack with an additional neck invert extension If in doubt please contact WPL for further installation advice The neck invert extension is supplied with 450mm PVC pipe PVC sockets x2 Diff...

Page 13: ...n rings are available to order This is to accompany a non factory fitted 460mm DMS neck extension Only one 460mm extension can be fitted to the tank do not stack with an additional neck invert extensi...

Page 14: ...patents the WPL Diamond range is also BS EN12566 3 2014 approved The compact range has the flexibility to be configured to meet the needs of various population sizes The DMS tank supports 1 up to 20...

Page 15: ...s directly into the bio chamber The bio chamber is a zone where the solids circulate continuously this is achieved by air rather than mechanical or electrical parts inside the tank The draft tube enab...

Page 16: ...the kitchen The treatment plant should be protected from grease and fats if installed in a property or commercial premises where catering is provided All commercial catering applications require the...

Page 17: ...D E KG L DMS2 1 6 1740 1700 630 1610 2330 155 2270 DMS3 5 11 1960 1830 760 1730 2590 192 3030 DMS4 10 15 1990 2000 780 1930 2780 210 3975 DMS5 14 20 1990 2000 780 1930 2780 210 3975 Dimensions above s...

Page 18: ...0 3140 580 3040 3750 460 15038 DMC9 46 55 3300 3140 580 3040 3750 460 15038 Dimensions above shown in mm Deeper inverts can be accommodated with our range of standard invert extensions Indicative tech...

Page 19: ...at your installation site Risk of high water table or flooding Underground rivers running sand and chemicals in the soil Proximity of designated protection areas such as wells bore holes and springs...

Page 20: ...unit use webbing slings of a suitable specification which must be attached to the designated lifting points WPL accepts no responsibility for the selection of lifting equipment Inspection of goods In...

Page 21: ...t the General Binding Rules Tested with a load at 1 0Kn m2 to withstand accidental passage tank lids are not designed as pedestrian walkways Pipework gradients Ensure that there is sufficient fall gra...

Page 22: ...not supplied by WPL Excavator sufficient reach to attain the depth required along with webbing slings for lifting the plant Hose duct pipework rigid or flexible to contain and protect the air pipewor...

Page 23: ...or all pipes and any other connections to the unit Do not attempt to lift the treatment tank when filled with water Backfilling instructions The tank should be backfilled as per the installation diagr...

Page 24: ...paction Do not use vibrating pokes Also the backfill pour must not outpace the ballasting of the tank with water Backfill outside can only equal the level of the water inside WATER FROM HOSE WATER FRO...

Page 25: ...of the cut diffuser leg and set aside 4 Key the internal sides of both of the two plain PVC sockets and each end of the 450mm pipe provided 5 Glue both sockets onto the 450mm pipe using PVC cement glu...

Page 26: ...LINE FOR 105mm EXTENSION CUT LINE FOR 190mm EXTENSION CUT LINE FOR 290mm EXTENSION CUT LINE FOR 370mm EXTENSION LEAVE BODY UNCUT FOR 460mm EXTENSION SIDE VIEW PLAN VIEW 76mm 564mm 800mm Illustration o...

Page 27: ...nstalled in a dry well ventilated area If it is situated outside ensure it is installed in the approved weatherproof housing supplied with the WPL Diamond treatment plant DMS blower kiosk L 655mm x W...

Page 28: ...kiosk which is positioned near the tank Do not allow surface water to form a pool around the access lid or blower housing Model Population range persons Blower motor size kW Total power consumption D...

Page 29: ...und the kiosk with sand sharp sand or dry lean mix concrete Any void left underneath the blower kiosk will amplify the noise of the blower DMC kiosk The DMC kiosk is for above ground installation only...

Page 30: ...ther hole for the entry of the electrical cabling or ducting Hose connections Connect and secure the hose to the hose tail on the air distribution pipe in the centre of the tank with the hose clip sup...

Page 31: ...cessible from the 250mm removable inspection hatch The sample chamber should be Positioned no further than 5m away from the outlet of the tank Installed with dry lean concrete mix up to 300mm below gr...

Page 32: ...od MAINTENANCE The WPL Diamond plant requires routine periodic inspection and maintenance to ensure continuous trouble free operation At a minimum the tank should be inspected every six months by a Br...

Page 33: ...emperature dust and humidity conditions check air blower filter cleanliness and clean or replace the filter as necessary Six monthly check visual inspection of Air blower inlet filter Kiosk is dry and...

Page 34: ...ntents have a greyish dishwater appearance 6 As B 1 4 6 As C 1 5 3 Noticeable odour poor effluent quality 7 As B 1 4 7 As C 1 5 4 Aeration chamber contents are grey brown to black Slight to strong sep...

Page 35: ...peak flow turn air blower off for 15 minutes and check DO with a metre If DO is less than 1 0 part per million contact WPL for assistance 10 Effluent sample contains brown suspended solids more notic...

Page 36: ...uent The EPC can also be used as a sample chamber EPC technical specification Whats included Pumping chamber Manhole cover High level float switch Submersible pump and integral float switch Non return...

Page 37: ...nlet hole Backfill around the pumping chamber with concrete up to the lip of the chamber Cover so no water enters the chamber and allow to fully set Concrete used must be the same as the backfill for...

Page 38: ...e and through to the blower kiosk Connect the float switch for the high level alarm to the junction box Plug the flying lead from the red beacon into the junction box Connect the mains supply from an...

Page 39: ...il the chamber is at low level If the alarm operates with the float hanging down then it has been wired incorrectly START UP Starting the pump The pump operates automatically via the combined float sw...

Page 40: ...he pump from the power supply i e remove the plug from the socket These checks must be carried out every 12 months to maintain the efficiency of the system Pump precautions Pump power supply should be...

Page 41: ...djust the length of the float switch cable E Contact WPL See footer Pump does not stop A The pump is not deactivated by the float switch A Ensure that the float moves freely Check float operation the...

Page 42: ...iar products Do washing machines Do use liquids not powders in washing machines and dishwashers do try to spread your clothes washing throughout the week HINTS TIPS It is important that your family gu...

Page 43: ...washing machines Don t have a washing day try to spread your washing loads throughout the week Don t chemical liquid products Don t use household bleach and strong chemicals indiscriminately or have...

Page 44: ...d 9 Parts covered under the warranty period WPL warrants all the parts in the WPL Diamond when registered with the manufacturer to be free from defects in material and workmanship in normal use and se...

Page 45: ...for the cancellation of the contract of purchase and sale Specifically exempt from this warranty are limited life consumable components subject to normal wear and tear such as air pump vane diaphragm...

Page 46: ...of technical design quality of manufacture and supply of environmental wastewater solutions Our high level of expertise means that we offer all of our customers from the individual homeowner to large...

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